For purposes of making purchases in this town, items that fall into the above categories are available 90% of the time. One item of choice that fits into said categories can be acquired with a 100% chance of being found.
If one wishes to acquire an item that does not fit into the above categories it is at a 50% find rate.

She also buys an Ioun Torch (75 gp), which is recommended to her as a light source, but ends up spinning in circles to catch it, which eventually makes her give it to Jhaele (after paying for the damage to the stand she fell into (25 gp)).